Search

Your search keyword '"Aigo"' showing total 4 results
Start Over Author "Aigo" Journal electronics letters
4 results on '"Aigo"'

2. Comparison of electronic characteristics and thermal resistance for HEMTs grown on GaAs and Si substrates

Author

Hirokatsu Yashiro, Aiji Jono, A. Moritani, Takashi Aigo, and Akiyoshi Tachikawa

Subjects
Materials science, Silicon, business.industry, Transconductance, Thermal resistance, Electrical engineering, Gate length, chemistry.chemical_element, Semiconductor device, High-electron-mobility transistor, Gallium arsenide, chemistry.chemical_compound, chemistry, Optoelectronics, Field-effect transistor, Electrical and Electronic Engineering, business
Abstract

HEMTs have been successfully fabricated on silicon and their thermal resistance evaluted for the first time. A maximum transconductance of 330mS/mm was obtained with 0.8 μm gate length and 105 μm width. The thermal resistance of the HEMTs on Si was 36 ± 5°/W with total device thickness of 400μm, demonstrating that the thermal resistance of GaAs/Si is about half that of GaAs/GaAs.

Published
1992
Full Text
View/download PDF

4. Super low-noise HEMTs with a T-shaped WSix gate

Author

Satoru Asai, T. Aigo, Isamu Hanyu, Mitsuji Nunokawa, S. Ohmura, K. Joshin, Y. Aoki, and Y. Hirachi

Subjects
Materials science, business.industry, Gate resistance, Electrical engineering, Optoelectronics, High-electron-mobility transistor, Electrical and Electronic Engineering, business, Noise figure, Low noise
Abstract

A T-shaped quarter-micron gate structure composed of WSix/Ti/Pt/Au has been developed for low-noise AlGaAs/GaAs HEMTs. The gate resistance Rg was reduced to 0.3 Ω for devices with 200 μm-wide gates despite using WSix, and the source resistance Rs reached 0.28 Ωmm by minimising the source-gate distance using a self-alignment technique. This HEMT exhibited the lowest reported noise figure of 0.54 dB with an associated gain of 12.1 dB at 12 GHz.

Published
1988
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results